<template>
    <div>
        <!-- 面包屑 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>
        <a href="/">数据统计</a>
      </el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片 -->
    <el-card class="box-card">
         <div id="main" style="width: 600px;height:400px;"></div>
    </el-card>

    </div>
</template>
<script>
import echarts from 'echarts'
import _ from 'lodash'
export default {
  data () {
    return {
      // 表格的配置数据
      option1: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }

    }
  },
  async mounted () {
    // 一定要在这里初始化，因为要等页面上的dom都挂载好后才行
    var myChart = echarts.init(document.getElementById('main'))
    const { data: res } = await this.$http.get('reports/type/1')
    if (res.meta.status !== 200) return this.$message.error('失败')

    this.option1 = _.merge(this.option1, res.data)
    // 使用刚指定的配置项和数据显示图表。
    myChart.setOption(this.option1)
  }

}
</script>
